[machineid] Use same approach as we do in Manjaro

- See also https://gitlab.manjaro.org/applications/calamares/commit/da8f45ae
- Fixes #1314

src/modules/machineid/main.py

@@ -54,10 +54,6 @@ def run():
     enable_symlink = libcalamares.job.configuration["symlink"]
     target_systemd_machineid_file = root_mount_point + "/etc/machine-id"
     target_dbus_machineid_file = root_mount_point + "/var/lib/dbus/machine-id"
-    target_dbus_folder = root_mount_point + "/var/lib/dbus"
-    
-    if not os.path.exists(target_dbus_folder):
-        os.mkdir(target_dbus_folder, 0644)
 
     if os.path.exists(target_dbus_machineid_file):
         os.remove(target_dbus_machineid_file)
@@ -69,7 +65,7 @@ def run():
 
     if enable_dbus:
         if enable_symlink and os.path.exists(target_systemd_machineid_file):
-            check_target_env_call(["ln", "-s", "/etc/machine-id",
+            check_target_env_call(["ln", "-sf", "/etc/machine-id",
                                    "/var/lib/dbus/machine-id"])
         else:
             check_target_env_call(["dbus-uuidgen", "--ensure"])